Green-sand-core box.



'N0-.'76s,138. PATENTBD JUNE 21, 1904.

1. P. Woons.

GREEN SAND CORE BOX. APPLIGATIUN FILED JULY 17', 1110s.

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no 11011111...v n unirsi-81111111* 1.

No. 763,138. PATBNTED JUNE 2.1, 1,904. P. F. WOODS. GREEN SAND UORE BOX.

APPLICATION FILED JULY 17, 1903.

2 SHEETS-SHEET 2.

I0 HODEL.

4 vation tlicroof..

' spcctivoly, Fig'. 2..

opon and a completed coro in UNITED STATES PATENT OFFiCii.

GREEN-sAND-CORE Box.

SPECIFICATION forming part To (LN mlm/n, if infn/y conferir-lt:

Bo it known thai l, lA'iniifn l?. Woons, a oitiziin ol" tho Unilid Stato-s, rosiding at Bnl"- falo, in tho county of llrii and Statoof Now York, havo invontid now and iisit'iil ImproveinontS in (irion-Sandf(oro Boxia, ot' which tho following is a napioilication.

rlliis invontion rilatis moro particularly to a coro-inox for forming' giron-,sand coros to he. iinployfd in molding' car ioni'nal-hoxirs.

'l`hi ohjii-t ol tho invontion is to provido :i coro-linx o1 Aimpli` and practical construction in which tlif g'roinu-sand coros c an ho nindo rapidl)Y and from which thoy can hi' rcadiljY i'oinovcd without injuring' thoin.

Another ohjict ot' tho invontion is to form tho coio-hox'of tho minimum ninnhor of loparahli parts in ordii' to savotimoin aasonihling' tho parts primratory to forming' tho coro and to avoid injury to thi` coro in moving' the parts to fr0-o tho coro and pii'rnit its tho coro-box.

. .\nothci'lobjoct of tho invention iS to avoid inaccuracies in tln` formation and loca-tion o1 the hingO-liig' for the ii'nirnal-hox lid hy providing tho coro-box with moans for `opporting theI dry-Sand mold which forms tho hing'clng' on tthc coro-box and making' tho lamo-a part of the core.

In tho accoi'npanying drawings, consisting' ol' two shoot-S, Fig'iii'o 1 is a. sido nlovation of a coro-box iinhodying thc invintion. Fig'. Q is a plan vioiv thiroof. Fig'. 3 is an ond clo- Fig'. 4 ia a. transvorae vortical l@action thereof in lino 4 4,: Fig'. 2, show! ing' hy dotted lines tho sidos partiall)7 oponod. Fig. 5 is a porspectiiv'c vicw showing tho hox place on tho hottoni. Fig. (S is a perspective View of tho corosupport. Fig'. 7 is a horizont-al section through thi` roar end of thocoro-lio);` sliowiiigftlioromovable supporting-slidoafor thodust-guardchanihir coro. Figa. 8 and l) are vertical Soctions', on an oiilai'g'od scalo, of the Support for the hinge-lng niold in lines t5 8 and S) S), Aro- Figzl() 'is a transverse Vertical Hoc-tion of .thocoro-hox-io litio l() lo, Fig. 1.

Lilo.` 'lett-ors of roforonco rofor to liko parts in tho sovoral lig-uros.

of Letters Patent No. appiglio niiiiiiiiiy 17, i903. semi Nn. 165,978

l l l i l tho ihara' rvstn.

`mannir of hing'ing' to h o swung' ontivai'i troni tho hasn and tho coro ho):` which consisiso wooi'in, oif nitifimix'), Nien' vonk.-

No modelo 'sopporta lor thi hot ilovailod from tho ll lhoointral portion tln. liano is shaped to propia-Li' ooi' or siippoi'l ol thi" Iioiioni tom fano of Lln cori` and siippori and varios somoivha making' coros for dill'oront ntylos also provdid at its front hoxoa. 'l`ho liano in ond with a. tral'isvorso horizontal portion i' ai. its roar ond with a c constitntn noats loi' ing-shol F ripreaonts innir tacos of aro shaped to proporl oi' tho coro, and, lik@ tho holiom somewhat in coro-hoxos Jfor forming' dilli'i'oni stylos of axlohoxos.

thcfront and r-irar Seats w and The. Lnidos aro prov lowor odg'os with dopcnd which oxtind inwardly` pm iocting hing'o-lng'sJL on the l) tliov4 are hing'od h5' pin.- or holt-5 f'".

tho nidos porinits tho Haino as indicated in Fig' tlnf Surfaci Hiii'iporting' thc coro idod atits onda with ti'anavoi'sril'vsido is prov ls ioi' tho coro a toni plato. whirh 763,138, dated Juno 2L, 1904..

u hott-olii oi' hasn ol' i llil oorvl` a liotlom plalil or porl'ol'm tho holilio laiiii' oll axioand onravid portion il, ivhii'h tho front and roar hoartho conti-al portions o y forni ihr 'vm'tioal plato, vary lho los ox l for idod ing' i'hor or Hiipport. thoisidonoll tho coro-hoh'.

hingo-A lng's i, hosido -ontwai'dl,\' aso. to which This llv and down wardlhY awa).Y

. 5, nntil tho)r rust iipon -hox.

oxtonding iiprkg'ht` ond soctions which moot ovoi' the coro-support s liano and ronatil'iito iln1 hox.- Thi` niooting' nprig'ht odg'os o Sections aro prifci'al ily provii l g'i'oovis` (son Fig'.

iso play oi' and in ating' tong'non1 ani interlock to provont ondw sore thi' propo-r position of tln.

The nidos aro hold and provontod From tho laand in tho hox ina)Y lio Oinplo'vid.

onda

oats` at tho onda ol' tho ondivalls ol" tho corof (lii ind lod with copor- 2, which and l idos.

in thiir nprig'ht posi ion soparating whrn iai'npmg' lCacli Inido is oarh ond ,of thc hox pivotid to ono ond .Qiction and vnig /l' on Lln othor vnd tahlo holding' doviwl roo' y'm in the sides of the core-box.

supported,

sides necossziriljy have thin edges, and tho)Y I are preferably nnule separately from tlu` sides of hnrduinetnl which will not be easily broken if struck by the taniping-tools in foriningthe core. As the lillrts are on the sides of the box` they are moved away from the corel when the box is opened and cannot break the corners of the core. when the latter is lifted oflI of the bottoni plate.

4The dust-guard chamber of the ear-ar le box is formed by a balierhsand core in the forln of an upright thin slab 1i, Figs. 5 and 6. The dust guard chamber core is supported in proper positionin the core-box, as follows: Each side .of the core-box is provided with parallel l'ilates'L, which are secured or formed thereon and project inwardly-from the upper port-ionsthereof. M, Figs-4, '7, and 10, represents slides, which projectinto the core-box below the plates L through vertical openings` The slides are movable iriand are guided by a transverse groove 'm' in the bottom' plate. Each slide.

consists of two-"separated parallel plates, which, together withthe plates L, projecting from -the sides .of the core-box, form transtheir outer ends with suitable portions which project outwardly from the box 4and serve asl bor, which arrangedlongitudinally in thev core-box and is' supported by bearing shells..

or blocks -N 41l at the opposite ends ofthe snpport and resting on the seats c datthe opposite ends' of the base.

'sisting of horizontal hollow end portions n2, which are connected by a plurality of substantially parallel 'separated'-grate-bars '/f.

-These grate-bars extend downwardly between*A p bearing-shells on the seats o al atopposite ends The sides F of the box are then the ends of the support, so4 as to conform substantially-to the shape of the bottom and lower'end .portions of the core and when in position in the core-box extend down to within a short distance ofthe bottom of the corcf box. The horizontal hollow end portions of the core-support are comparatively wide, so4 that they have an extended horizontal bearing-in the horizontal holes in Vthe shells 'n 1i', so that the core-support is held'fi-oin turning or swinging on theshells. The ends of the coresn.p|n rl. are provided with one or more alincd longi-ftndil'mlholes u, through which The slides M are provided at Thecore-suliport is preterably of the. constructlon shown, con.

tubes or rods (shown by dotted lines) are inserted when the core-suliport is placed in the core-lion l/Vhen the core is formed lin the box, the bottom portions thereof are sup' ported and held together by the grate-bars of the co're-supliorn and the latter absolutely prevent the breaking oi dropping oli' of por tions` of the core. After the core has been formed the tubes or rods 11" are pulled out of their bearing-holes in the corcesupport and leave longitudinal vent-holes in the core for the escape of gases, whichpass out through these holes in the core and the holes in the ends of the core-support. The end portions of the core-support are preferably provided with holes or made in skeleton 'form to .reduce the weight of the support.

The hinge-lug for the lid of the car journal* box is formed by a baked-sand core O, Fig. 5, which constitutes a part of the whole completed core. This core part is supported in correct position on the core-box by a sectional horizontal slide or bridge, which rests n the upper edges of the sides of the V'corefboic and consists of a section P, provided 'with a longitudinal dovetailedV or undercut groove p,

and a section P', which slides lin said dovetailed groove. The two section-s ofthe slide are provided on their under sides with depending lugs p', which make depressions p,

- Fig.- 5, in the .top of the core for molding the separated depending lugs ori-thev inside of the top ofi-the ijournalfbox for retaining the journal-brasses in.l place.' The lugs on the two parts of the slide engage in notches p3 in the upper edges of the sides of the core-box,A

which servefto properly position theslidc and permit the passage of the4 lugs in sepa-f IOO rating the sections of theslide after the core is completed. The two sections of .the slide baked-sand core K for forming'thedust-guardchaiuher and the bearing-shells w, w' are placed position onth'e base of the core-box, with its of the baseswung upwardly to their upright position and secured by the pivoted catches at the ends of the box. The sup'porting4slides M for the dust-guard-chainber core are then inserted laterally through the openings in the sides of the box. The-sectional supportingfslides P I" for the ,core-part'for forming the hingelug is placed in position on the tops ol" the.,

sides ofthe corebox and thc coi-epart for the hinge-lug placed'on the su pporti ng-slid e. lhe supporting-slide is. so disposed' and propor- IO's 1 IIO 1 15 .on tlie-core-a1bor and thel latter is placed in tioned that the core part will retain itsposition with a' portion thereof projecting out from the supporting-slide. Sandl is then put in the box and tamped or packed and struck off at the top in the usual manner. The slides for the dust-guard-chamber core and for the hinge-lug core are then removed by pulling the sa'me laterally out of their retaining openings' and notches and the sides o f the box swung downwardly to a horizontal position. When the supporting-slide for the hinge-lug core is removed, the lug-core is supported in its proper position on the top 'of the main core and constitutes a part thereof. 4The core is thus lleft exposed on the bottom or base of the core-box and can be lifted off of the base by means of the projecting ends of the core-support N. `As the fillets which form the rounded upper and lower longitudinal corners of the core are' carried by the sidesof the core-box they are moved with the sides away' fromthe core andthey cannot therefore strike and break the corners of the core in lifting the core off of the base. from the basewithout any particular care be- 'ing exercised, because there are no parts of the box which can strike the core and mar or break it, The hinge-lug mold, forming, as it docs, a partof the core, cannot be misplaced relative tothe core when the latter is placed in the mold-flask, and the hinge-lug will necssarily be located properly on the journal- In use the core-box can be placed directly` ontlie Hoor of the foundry or on a low support, as most convenient for the particular workman usingthe box. vantage over a machine in which the core is formed at a considerable height from the floor, because less exertion is required for the workman in shoveling the sand into the box, and the core-box is ata desirable. height for tamping the sand. Furthermore, when the core has been completed and the box is opened, the core is in themost advantageous position for the workman to lift it olf of the base, and the sides of the core-box do not occupy a position which will prevent'the work-man from obtaining the necessary lifting purchase on the core.

'1n formiugaeore for a journal-box in which the ,front wall below the filling-opening inclines rearwardly it is desirable to provide a removable slide to form this portion of the front face of the core. Such aslide is shown at R and is inserted transversely of the box in holes r' in the sides of the core-box. The slide is provided with a projecting portion or handle`by which it is inserted and removed from its retaining-holes.

I claim as -my invention- 1. In a portable box for making green-sand cores, the combination of a base'havinga forming-face conforming` to the -lower portion of the core to be made, and supporting portions below said forming-face to rest on and elc- The core canbe removed This is a' great advate said forming-face above a supportingsurface, and also having end supports for a core-arbor, oppositely-arranged sides having inner faces conforming to theoppositel portions of the core to be made, said sides being hinged adjacent to their lower edges directly to said base below said forming-faec, whereby said sides can be swung downwardly away from the core to completely expose the latter Without interfering' with the workman in lifting the core off of said base, means for securing said sides in an upright' position, retaining parts for an upright separate core lixcd to and projecting inwardljr from the upper portions of 'said sides, and retaining-plates for said separate core projecting inwardly from the lower portion of said sides and removably'supported thereby, substantially as set forth, p

2. In a portable box for maltnggrcen-sand cores, the combination of a base having a forming-face conforming to the lower portion of 'the core to be made, and having supporting being hinged adjacent to ltheir lower edges directly to the base below said forming-face,

whereby said sides can be swung downwardly away from the core to completely expose the latter without interfering with the workman f in liftingbthe core off of said base, means for securingsa'id sides in an upright position, retaining parts for an upright separate core fixed to and projecting inwardly from the upper portion of said sides, said sides having vertical slots below said fixedretaining parts, and removable retaining-platesfor said separate core projeetinginto the core-.box'through said slots, substantially as set forth.

3. A core-box comprising a base4 provided with an upper face conforming to the lower face of the core to be formed, sides hinged at IOC IIO

their lower edges to said base and havingv in-- l said inwardly-projecting plates'in vertical openings in the sides of said box, substantially as set forth.

'4. A core-box comprising a base provided with an upper face conforming to the lower face of the core to be formed, sides hinged at their lower edges to said'base andhaving inner faces conforming to the side faces of the core, means for securing said sides in an upright position, a sectional horizontal slide ex tending across the core-box and supported by said sides, and constituting a temporary support-for a core p art which is supported by the core when said Sectional slide is removed, sub' `stantielly as set forth.

5. A core-box comprising e base 'provided with an upper face conforming to the lower l face of the core to be formed, sides hinged at their lower 'edges to said base and having inner faces conforming to the sides of the core, means for seering sald sldes in an upright pos1t1on, a sectional slide supported on the face of the core to be formed, sides hinged at their lower edges to said base and 'having in- .ner faces conforming to the sides of the,core,

means for securing said sidesein'an upright positioma sectional slide supported on"the upper portions of `said sides rand having depending lugsjwhieh engage in notches in said sides, said sectional slideV constituting a tenir.. porary support for n core part which is' supported' by the core when said sectional slide is removed, and -means for holding said secr tional slide from raising olf of its supports,

substantiallyV as set forth'. v

7. The combination of a core-support com-l prising end portionswhioh rest onsnitable supports on the core-box, and integral bars which connect said end portions and extend downwardly between the end portions to supi .port the lower portion of the core, said end 'portions having one or more longitudinab' alinedvholes and a rod or tube removably held` in said holesnnd which when removed leaves avent-hole in the core, substantially as set 40 forth..

8. The combination of a core-box provided at opposite ends with 'seets,` bearing-blocks resting on said seats and providedwith longitudinal holes, a core-support-comprising-end portions removably engaged in said seats in' the bearing-blocks and having one or more inf i tegral bars connecting saidend portions-11nd extending downwardly between the sameto support the lowerporton of the core, .said SQ end/portions of the core-support having' long-itndinal-alined-holes and one or more rods removably held in said holes and which whenremovedleave vent-holes in the core,'su`bstan tielly asset forth.

, Witness my hand this 14th deyof July, -1 903.

- PATRICK F. Witnesses: l 

